WO2007102937B1 - Apparatus and method for supplying power to subcutaneously implanted devices - Google Patents
Apparatus and method for supplying power to subcutaneously implanted devicesInfo
- Publication number
- WO2007102937B1 WO2007102937B1 PCT/US2007/000860 US2007000860W WO2007102937B1 WO 2007102937 B1 WO2007102937 B1 WO 2007102937B1 US 2007000860 W US2007000860 W US 2007000860W WO 2007102937 B1 WO2007102937 B1 WO 2007102937B1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- mechano
- electric
- inner element
- electric transducer
- energy
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
- A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
- A61N1/372—Arrangements in connection with the implantation of stimulators
- A61N1/378—Electrical supply
- A61N1/3785—Electrical supply generated by biological activity or substance, e.g. body movement
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N11/00—Generators or motors not provided for elsewhere; Alleged perpetua mobilia obtained by electric or magnetic means
- H02N11/002—Generators
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Radiology & Medical Imaging (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
- Surgical Instruments (AREA)
Abstract
A power source providing electric power to subcutaneously implanted devices capture mechanical energy from the expansion and contraction of a cross-section of a blood vessel during a systolic-diastolic blood pressure cycle include a mechano-electnc transducer assembly mechanically coupled to involuntarily moving tissue. The transducer includes a deformable inner element and a substantially rigid outer structure positioned outward of the elastic inner element. A transducer element disposed between the substantially rigid outer structure and the inner element is operable to generate electric energy and output the electric energy to a pair of output terminals. A deformable biocompatible envelope substantially surrounds the outer structure, the inner element and the transducer element.
Claims
1. A method of generating electric power for subcutaneously implanted devices, comprising: subcutaneously converting mechanical energy generated from at least one of an expansion and contraction of a blood vessel to electric energy.
2. The method of claim 1, wherein subcutaneously converting mechanical energy generated from an expansion and contraction of a blood vessel includes capturing involuntary mechanical movement of at least one of an elastic expansion and contraction of blood vessels during systolic-diastolic cycles.
3. The method of claim 1, wherein subcutaneously converting mechanical energy to electric energy includes urging an inner element towards an outer structure, wherein the inner element is disposed so as to be in close proximity to an outer surface of the blood vessel.
4. The method of claim 1, wherein subcutaneously converting mechanical energy to electric energy includes stimulating at least one piezoelectric generator.
5. The method of claim 1, wherein subcutaneously converting mechanical energy to electric energy includes actuating an electromagnetic transducer.
6. The method of claim 1, wherein subcutaneously converting mechanical energy to electric energy includes actuating a variable capacitor electric generator.
7. The method of claim 6, wherein subcutaneously converting mechanical energy to electric energy includes: moving a dielectric material within a space between a first and second set of conductive plates; and generating a charging or discharging current and a respective voltage across a pair of terminals connected to the first and second set of conductive plates.
20
8. The method of claim 1, further comprising: encircling a blood vessel with a mechano-electric transducer in close contact with the blood vessel.
9. A power source configured to subcutaneously convert mechanical power into electrical power comprises at least one subcutaneous mechano-electric transducer assembly directly coupled to involuntarily moving tissue, the subcutaneous mechano-electric transducer assembly including: a deformable inner element configured to expand in response to an expansion of a blood vessel; a substantially rigid outer structure positioned outward of the inner element; a mechano-electric transducer element disposed between the substantially rigid outer structure and the inner element, the mechano-electric transducer element operable to generate electric energy and output the electric energy to a pair of output terminals; and a deformable biocompatible envelope encasing the outer structure, the inner element and the mechano-electric transducer element; wherein the inner element is operable to expand outward towards the outer structure during a systolic period, the expansion of the inner element operable to cause the mechano- electric transducer element to generate electricity.
10. The device of claim 9, wherein the subcutaneous mechano-electric transducer assembly is operable to convert mechanical energy into electrical energy by a piezoelectric effect.
11. The device of claim 10, wherein the subcutaneous mechano-electric transducer element includes at least one pair of mechanically coupled piezoelectric generators, each having two piezoelectric layers and a shared mechanical support onto which each of the piezoelectric layers are laminated.
12. The device of claim 9, wherein the subcutaneous mechano-electric transducer assembly is operable to convert mechanical energy into electrical energy based upon a piezomagnetic effect.
13. The device of claim 9, further comprising an electric storage component including a changeable geometry operable to convert the mechanical energy into electrical energy by changing the geometry of the electrical energy storage component.
14. The device of claim 9, wherein the subcutaneous mechano-electric transducer assembly is operable to convert mechanical energy into electrical energy by driving at least one variable capacitor electric generator.
15. The device of claim 9, wherein the subcutaneous mechano-electric transducer assembly is operable to convert mechanical energy into electrical energy by driving at least one electro-magnetic generator.
16. The device of claim 9, wherein the subcutaneous mechano-electric transducer element comprises: a multi-plate capacitor including of a first set of conductive plates a second set of conductive plates interleaved in a non-contacting configuration that includes spaces between the first and second sets of plates; and a material having a high dielectric coefficient movable between the spaces formed between the first and second sets of plates.
17. The device of claim 16, wherein the subcutaneous mechano-electric transducer element further comprises an insulating substance having a low dielectric coefficient essentially filling the space between the first set of plates and the second set of plates in the absence of the high dielectric coefficient material.
18. The device of claim 16, wherein: the first set of plates and the second set of plates are attached to the outer structure; and the high dielectric coefficient material is mechanically engaged by the inner element;
22 whereby the high dielectric coefficient material is urged by the inner element to occupy the space between the first and second sets of plates by an expansion of an encircled blood vessel during a systolic period.
19. The device of claim 9, further comprising: a linear electromagnetic generator including a coil winding attached to the outer structure; and a core comprising magnetic material attached to the inner element and movable within a core space central to the coil winding; whereby the core is urged by the inner element to occupy the core space by an expansion of an encircled blood vessel during a systolic period.
20. The device of claim 9, wherein a plurality of subcutaneous mechano-electric transducer assemblies are wired together and are configured to increase an amount of electric energy produced by the device.
21. The device of claim 9, further comprising a configurable voltage regulator/converter module operable to generate at least one of a constant voltage and a constant current output.
22. The device of claim 9, further comprising an electrically connectable medical device.
23. A device for subcutaneously converting mechanical power into electrical power comprising at least one subcutaneous mechano-electric transducer assembly arranged to be directly coupled to involuntarily moving tissue, the mechano-electric transducer assembly includes: a substantially rigid outer structure; a deformable inner element; a mechano-electric transducer element disposed between the substantially rigid outer structure and the inner element, the mechano-electric transducer element operable to generate electric energy and output the electric energy to a pair of output terminals; and
23 a deformable biocompatible envelope substantially surrounding the outer structure, the inner element and the mechano-electric transducer element; wherein the inner element is operable to apply a predetermined pressure on a substantially surrounded blood vessel during a diastolic period and to expand outward towards the outer structure during a systolic period, the expansion of the inner element operable to cause the mechano-electric transducer element to generate electricity; and wherein the mechano-electric transducer element includes: a multi-plate capacitor including of a first set of conductive plates interleaved with a second set of conductive plates; and a high dielectric coefficient material movable within a space between the first and second sets of plates.
24
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US75861106P | 2006-01-13 | 2006-01-13 | |
| US60/758,611 | 2006-01-13 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| WO2007102937A2 WO2007102937A2 (en) | 2007-09-13 |
| WO2007102937A3 WO2007102937A3 (en) | 2008-07-10 |
| WO2007102937B1 true WO2007102937B1 (en) | 2008-08-21 |
Family
ID=38475323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/US2007/000860 WO2007102937A2 (en) | 2006-01-13 | 2007-01-12 | Apparatus and method for supplying power to subcutaneously implanted devices |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US7813810B2 (en) |
| WO (1) | WO2007102937A2 (en) |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080200963A1 (en) * | 2007-02-15 | 2008-08-21 | Benjamin Pless | Implantable power generator |
| US8142452B2 (en) * | 2007-12-27 | 2012-03-27 | Ethicon Endo-Surgery, Inc. | Controlling pressure in adjustable restriction devices |
| US7977807B1 (en) | 2008-01-07 | 2011-07-12 | Medibotics Llc | Wearable device to generate electricity from human movement |
| US8311632B2 (en) | 2008-02-25 | 2012-11-13 | Autonomic Technologies, Inc. | Devices, methods, and systems for harvesting energy in the body |
| US8588926B2 (en) | 2008-03-25 | 2013-11-19 | Ebr Systems, Inc. | Implantable wireless accoustic stimulators with high energy conversion efficiencies |
| US8283793B2 (en) | 2008-08-21 | 2012-10-09 | Autonomic Technologies, Inc. | Device for energy harvesting within a vessel |
| US9526418B2 (en) * | 2008-12-04 | 2016-12-27 | Deep Science, Llc | Device for storage of intraluminally generated power |
| US20100140958A1 (en) * | 2008-12-04 | 2010-06-10 | Searete Llc, A Limited Liability Corporation Of The State Of Delaware | Method for powering devices from intraluminal pressure changes |
| US9353733B2 (en) * | 2008-12-04 | 2016-05-31 | Deep Science, Llc | Device and system for generation of power from intraluminal pressure changes |
| US9631610B2 (en) * | 2008-12-04 | 2017-04-25 | Deep Science, Llc | System for powering devices from intraluminal pressure changes |
| US9759202B2 (en) * | 2008-12-04 | 2017-09-12 | Deep Science, Llc | Method for generation of power from intraluminal pressure changes |
| US9567983B2 (en) * | 2008-12-04 | 2017-02-14 | Deep Science, Llc | Method for generation of power from intraluminal pressure changes |
| CN102148561A (en) * | 2011-03-08 | 2011-08-10 | 上海交通大学 | Self-holding type implantable miniature generator using vasomotion |
| US9084859B2 (en) | 2011-03-14 | 2015-07-21 | Sleepnea Llc | Energy-harvesting respiratory method and device |
| EP2520333B1 (en) | 2011-05-04 | 2014-09-03 | Sorin CRM SAS | Energy recovery device for autonomous intracorporeal capsule |
| EP2857065B1 (en) * | 2013-10-01 | 2016-05-04 | Sorin CRM SAS | Autonomous intracorporeal capsule having energy recovery with frequency conversion |
| FR3023993B1 (en) | 2014-07-18 | 2019-06-28 | Universite Paris-Sud | AUTONOMOUS ELECTRONIC DEVICE WITH ELECTROSTATIC TRANSDUCTION FEED PRODUCED BY A VARIABLE CAPACITY |
| US11654287B2 (en) | 2019-08-30 | 2023-05-23 | Ebr Systems, Inc. | Pulse delivery device including slew rate detector, and associated systems and methods |
| EP3930014B1 (en) * | 2020-06-24 | 2022-11-02 | Cairdac | Module for energy recovery with piezoelectric transducer, in particular for optimised recharging of the battery of an implantable medical device such as a leadless autonomous cardiac capsule |
| CN117224078A (en) * | 2022-06-08 | 2023-12-15 | 深圳清华大学研究院 | Miniature power generation device based on vascular pulsation and implanted miniature device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6809462B2 (en) * | 2000-04-05 | 2004-10-26 | Sri International | Electroactive polymer sensors |
| DE19827898C1 (en) * | 1998-06-23 | 1999-11-11 | Hans Leysieffer | Electrical energy supply for an implant, eg. a hearing aid |
| AU1198100A (en) | 1998-09-23 | 2000-04-10 | Keith Bridger | Physiological sensing device |
| US20020103425A1 (en) * | 2000-09-27 | 2002-08-01 | Mault James R. | self-contained monitoring device particularly useful for monitoring physiological conditions |
| US7273457B2 (en) | 2000-10-16 | 2007-09-25 | Remon Medical Technologies, Ltd. | Barometric pressure correction based on remote sources of information |
| US20040230090A1 (en) | 2002-10-07 | 2004-11-18 | Hegde Anant V. | Vascular assist device and methods |
-
2007
- 2007-01-12 WO PCT/US2007/000860 patent/WO2007102937A2/en active Application Filing
- 2007-01-12 US US11/622,969 patent/US7813810B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| WO2007102937A3 (en) | 2008-07-10 |
| US20070167988A1 (en) | 2007-07-19 |
| WO2007102937A2 (en) | 2007-09-13 |
| US7813810B2 (en) | 2010-10-12 |
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